A highly dangerous synthetic cannabis is either sprayed on to herbal smoking material or added to cigarettes in powder form.
Public Health England says the chemicals known as 'spice' can cause sickness and convulsions - and while there haven't been any cases recorded in Devon, the substance may well be available here.
The Exeter drug and alcohol charity RISE wants to pass the warning on to local residents.
New Lord Mayor’s pride in ‘thriving’ Exeter
'This is a city we can all be proud of'
Plymouth McDonald's wants 24/7 opening hours
"No notable complaints or issues" recorded in 10 years
Village’s only pub could close permanently
Owners of The Castle Inn at George Nympton have struggled to sell it
Government grant helps kick-start Oldway Mansion repairs
This helps us move ever closer to restoring Oldway'
Devon plant firm digs in over land row
Sign erected
Torquay father’s concern as son held by Israeli forces
Elliott Roberts was skippering a yacht in Gaza aid flotilla
